Spurs are yet to learn the full extent of Son's injury from South Korea's medical staff, but he is unlikely to be available for the start of Mauricio Pochettino's pre-season on July 3.
The injury was a blow for South Korea, who now lead Uzbekistan by just a point with two matches remaining in the battle to secure the second automatic Asian qualifying sport for next summer's World Cup in Russian Federation.
The Uruguayan's decision to quit after less than a year in charge took the Qatar Football Association by surprise and its president said he wanted to discuss the matter with the coach before accepting the resignation.More news: Premier League fixtures: Arsenal target return to Champions League
Two goals from Hassan Al Haydos proved decisive for Qatar.
To muddy the waters a little further, Fossati said he would be willing to help the national team in any capacity if asked.
"I don't see something that can receive a punishment as it is a T-shirt with a picture of the emir", he said.
Korean newspapers called for Steilike to go.More news: UK Conservatives Set to Lose Seats in General Election
Japan missed the chance to take a three-point cushion at the top of Group B, ahead of its final games against Saudi Arabia and Australia which are both just one point back. The Sports Chosun said the game was a "disaster" and that the last two qualifiers against Iran and Uzbekistan were "matches before the gallows".
"We're just holding on to second place, and the general feeling around the KFA is that even if we do qualify for the World Cup, we won't be so competitive if we play the way we have", Yonhap quoted an unnamed "high-ranking" Korean FA official as saying yesterday.
In a night of late equalisers, the United Arab Emirates were the beneficiaries of a stoppage-time strike which at least postponed their elimination. But Salih, who had complained bitterly that China's penalty was soft, stepped up in injury time to place his free kick past goalkeeper Zeng Cheng and earn a point for Syria.More news: Fan paid $133000 for tickets to Game 5 of the NBA Finals